Please take video of the gauge with the system both active and in active so we can see the difference.

 

Without negative timing or extra fuel mine pops and crackles on shifts and decel with ALS enabled.

Keen to see some UICP boost logging

 

Will do

 

I dont know what to tell you...good luck.

Just to make sure we are looking at same thing...where are you measuring boost from?

Concerning BOV and holding 3 psi in IC pipe...you would have pressure in IC pipe because you are not using BOV. SAS valve I doubt is dispensing 100% of your left over air into exhaust manifold. Removing BOV and having that air pushed into exhaust manifold is a good idea. But I dont want to go that way.

Last night changed location for measuring boost and is now taking directly from turbo...compressor housing.

what we found is this;
we were hoping to watch the needle hold at 0psi on lift off...that definitely is not happening.

However with SAS combined with OEM ECU negative timing boost would not dip below -10 psi...or -.7 bar.
Doing quick youtube comparison, between shifts on non enabled cars...boost/vaccum would routinely hit -30 psi.

Now this was just street city driving...

Also watching the timing...as I mentioned before, the negative timing is never consistent...we were trying to get max negative timing out of the system...only hit -20 for just a millisec. Most of the time it would be between -10 and -15.

now if -20-->-30 could be done conistently that should show significant result...

in a week or so we will screw around with the maps some more for one last go around..."if it isnt broke, fix it till it is"

 

I hit -20 solid and hold very steady.

No bov bpv doesn't bother me.

Measure from compressor nipple.

Post the sub 100 area of your timing map if you will

 

Took two videos but theyre hard to see with me holding the cam. In uploading them anyways

 

https://www.youtube.com/watch?v=gi0A...e_gdata_player

 

Tell me uf you see a difference in these two videos

 

https://www.youtube.com/watch?v=kB9S...e_gdata_player

 

This isnt the limit of tge system and my efforts dont stop here

 

I dont see a difference but then again the fact you are not running a bov kind of eliminates the need for this system to begin with. You will get a much more accurate measure of its effects if you were running a bov to see whether or not it is able to sustain positive pressure in the piping pre throttle body. The way your car is set up now will show positive pressure regardless of whether or not the SAS system is activating properly because the excess air has no where else to go.

 

But if we recirc and use a bov why does it build pressure? There is still vac in the manifold from decel, the bpv opens and vents air that doesn't get forced into exhaust. I will absolutely try it though.

Ive seen more boost, big spikes, i just dont know how to reproduce that. I think i had a bpv then... lol

They were also after a good rowing through the gears. These are single gear pulls

 

404 no sense was made

 

Even if the BPV opens and recirculates wouldn't some of the boost still enter the SAS lines if the turbo is spooled?

 

Well, i believe there is a key element missing. I did run the system already with the bpv. But not as agressive with the retarded timing.

The bpv may be a key element in keeping shaft speed up. My thoughts were that since air would be allowed to vent the BPV, that pressure would not push its way in the sas system as easily, and build up of pressure would be more difficult on the cold side with essentially a large hole bleeding boost. evors06 said he ran a gus modded stock valve. and he also had enough pressure to open the downpipe dump.